Pink everything in Blender, even with all solutions i tried (searched Web for hours)
The issue comes from your shader:



Basically, you're trying to mix a transparent shader with "nothing". It's kind of trying to multiply by zero: it doesn't work well. If you set the material output to be Cycles specific while in LookDev display, it renders pink. If you go to rendered display, it will be black no matter the render engine.

So, try to add a shader into the second input of the mix shader. Or remove the mix shader completely.

If you intended to control the amount of transparency, just play with the color value: